<template>
  <div class="dashboard-container">
    <div class="app-container">
      <el-card>
        <el-tabs>
          <!-- 放置页签 -->
          <el-tab-pane label="角色管理">
            <!-- 新增角色按钮 -->
            <el-row style="height:60px">
              <el-button
                icon="el-icon-plus"
                size="small"
                type="primary"
                @click="hAdd"
              >新增角色</el-button>
            </el-row>
            <!-- 表格 -->
            <el-table :data="list">
              <el-table-column label="序号" width="120" type="index" />
              <el-table-column label="角色名称" width="240" prop="name" />
              <el-table-column label="描述" prop="description" />
              <el-table-column label="操作">
                <template #default="{row}">
                  <el-button size="small" type="success" @click="hPer(row.id)">分配权限</el-button>
                  <el-button size="small" type="primary" @click="hEdit(row)">编辑</el-button>
                  <el-button size="small" type="danger" @click="hDel(row.id)">删除</el-button>
                </template>
              </el-table-column>
            </el-table>

            <el-row type="flex" justify="center" align="middle" style="height: 60px">
              <!-- 分页组件 -->
              <el-pagination
                :current-page="pageParams.page"
                :page-sizes="[2, 3, 5, 8,10]"
                :page-size="pageParams.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total"
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
              />
            </el-row>
          </el-tab-pane>
        </el-tabs>
      </el-card>
      <!-- 新的弹层 -->
      <el-dialog title="新增角色" :visible.sync="dialogTableVisible" :close-on-click-modal="false" :close-on-press-escape="false" @close="hClose">
        <el-form ref="roleForm" :model="roleForm" :rules="rules" label-width="100px">
          <el-form-item label="角色名称" prop="name">
            <el-input v-model="roleForm.name" />
          </el-form-item>
          <el-form-item label="角色描述" prop="description">
            <el-input v-model="roleForm.description" />
          </el-form-item>
        </el-form>
        <!-- 底部 -->
        <el-row slot="footer" type="flex" justify="center">
          <el-col :span="6">
            <el-button size="small" @click="dialogTableVisible=false">取消</el-button>
            <el-button size="small" type="primary" @click="hSubmit">确定</el-button>
          </el-col>
        </el-row>
      </el-dialog>

      <!-- 分配权限的弹层 -->
      <el-dialog title="分配全选" :visible.sync="perShowDialog">
        <assignPer
          :id="roleId"
          ref="assignPer"
          @success="hSuccess"
        />

      </el-dialog>
    </div>
  </div>
</template>

<script>
import { addRoles, delRoles, editRoles, getRoles } from '@/api/settings'
import assignPer from './assignPermission.vue'
export default {
  name: 'SettingsPage',
  components: {
    assignPer
  },
  data() {
    return {
      roleForm: {
        name: '',
        description: ''
      },
      rules: {
        name: [
          { required: true, message: '请输入角色的名称', trigger: 'blur' }
        ],
        description: [
          { required: true, message: '请输入角色的描述', trigger: 'blur' }
        ]
      },
      list: [],
      pageParams: {
        page: 1, // 页码值
        pagesize: 3 // 每页显示的条数
      },
      total: 0,
      dialogTableVisible: false,
      isEdit: false,
      perShowDialog: false,
      roleId: ''
    }
  },
  created() {
    this.loadRoles()
  },
  methods: {
    async loadRoles() {
      try {
        const res = await getRoles(this.pageParams)
        this.list = res.data.data.rows
        this.total = res.data.data.total
        console.log(res.data.data)
      } catch (error) {
        this.$message.error('获取数据失败')
      }
    },
    handleSizeChange(val) {
      console.log(`每页 ${val} 条`)
      this.pageParams.pagesize = val
      this.loadRoles()
    },
    handleCurrentChange(val) {
      console.log(`当前页: ${val}`)
      this.pageParams.page = val
      this.loadRoles()
    },
    // 确认/提交按钮
    async hSubmit() {
      this.$refs.roleForm.validate(valid => {
        if (!valid) return // 校验没通过
        this.isEdit ? this.doEdit() : this.doAdd()
        // 校验通过，实现新增或者编辑
      })
    },
    // 新增
    async doAdd() {
      try {
        const res = await addRoles(this.roleForm)
        console.log('新增角色', res)
        // 新增后 总条数加1
        this.total++
        // 计算出最大的页码值：Mathi.ceil(总的条数 / 每页显示的条数)
        const maxPage = Math.ceil(this.total / this.pageParams.pagesize)
        this.pageParams.page = maxPage
        this.dialogTableVisible = false
        this.loadRoles()
      } catch (error) {
        console.log(error)
      }
    },
    hAdd() {
      this.isEdit = false
      this.dialogTableVisible = true
    },
    // 编辑
    async doEdit() {
      try {
        const res = await editRoles(this.roleForm)
        console.log('编辑角色', res)
        this.dialogTableVisible = false
        this.loadRoles()
      } catch (error) {
        console.log(error)
      }
    },
    // 编辑
    hEdit(row) {
      this.isEdit = true
      // 打开弹窗
      this.dialogTableVisible = true
      // 数据回显
      this.roleForm = { ...row }
    },
    // 分配
    hPer(id) {
      this.perShowDialog = true
      this.roleId = id
      this.$nextTick(() => {
        this.$refs.assignPer.loadPermissionList()
      })
    },
    hSuccess() {
      this.perShowDialog = false
      this.$refs.assignPer.resetChecked()
    },
    // 删除
    hDel(id) {
      this.$confirm('是否确认删除').then(async() => {
        const res = await delRoles(id)
        console.log(res)
        if (this.list.length === 1) {
          this.pageParams.page--
        } if (this.pageParams.page <= 0) {
          this.pageParams.page = 1
        }
        this.loadRoles()
      })
    },
    // 取消
    hClose() {
      this.$refs.roleForm.resetFields()
      this.roleForm = {
        name: '',
        description: ''
      }
    }
  }
}
</script>

<style>
</style>
